User`s guide

Contents

Important Information .....................................................2

Sample Operations ..........................................................2

Initializing the Calculator ................................................2

Safety Precautions ..........................................................2

Handling Precautions ......................................................2

Removing the Hard Case ................................................3

Turning Power On and Off ..............................................3

Adjusting Display Contrast ............................................3

Reading the Display ........................................................4

Specifying the Calculation Mode ..................................4

Configuring the Calculator Setup ..................................4

Inputting Expressions and Values .................................6

Basic Calculations ...........................................................7

Function Calculations ................................................... 11

Complex Number Calculations (CMPLX) ...................15

Using CALC ....................................................................16

Using SOLVE ..................................................................16

Statistical Calculations (SD, REG) ...............................17

Base-

n Calculations (BASE) .........................................20

Equation Calculations (EQN) .......................................22

Matrix Calculations (MAT) (fx-570MS/991MS only) ..........24

Vector Calculations (VCT)

(fx-570MS/991MS only) ..........27

Scientific Constants (fx-570MS/991MS only) ....................29

Metric Conversion (fx-570MS/991MS only) ....................... 30

Calculation Ranges, Number of Digits,

and Precision .................................................................31

Error Messages ..............................................................33

Before Assuming Malfunction of the Calculator... .....34

Replacing the Battery ....................................................35

Specifications ................................................................35

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